sydneybailey6699 sydneybailey6699

03-10-2018
Mathematics

contestada

How do I factor trig functions?
I am stuck on how to factor out equations like 1+sinX-cos2x=0
I am confused on where to go from here to solve the equation. Pls help.

Respuesta :

MollieToliver MollieToliver

03-10-2018

Use cos2x =1-2sin^2x

1+sinx- (1-2sin^2x) = 1+ sinx -1+2sin^2x

=sinx+2sin^2x=sinx(1+2sinx)

Therefore

Either sinx=0 or 1+ sin2x =0

X=npi or sin2x=-1

Sin2x=sin 3pi/2

2x= npi +(-1)^n3pi/2

x=npi/2 + (-1)^n 3pi/4

Answer Link

Otras preguntas

To convert 5.25 minutes to seconds, you would use the ratio = seconds, you would use the ratio 1 second 60 minutes A. True B. False

Where is the bill of rights found in the constitution?

2) What is the value stored in the variable z by the statements below? int[ ] q = {3, 2, -2, 4, 7, 0, 1}; int z = q.length; a) 1 b) 3 c) 6 d) 7 e) None of the a

16. Is a bear an ENDOTHERM or ECTOTHERM?

What part of the Constitution mandated the census?

Which nervous system division is responsible for the integration of sensory information?

If quantity demanded exceeds quantity supplied, what most likely needs to happen to achieve equilibrium?The supply needs to increaseThe price needs to decreaseT

Find the vertex form of y=(x+2)(x-3)

A basketball rolling across a flat floor has ____energy.

What is the greatest integer that satisfies the inequality [tex]3x - 4 \leqslant 8[/tex]A.4 B.5C.6D.7Plz explain or show work :)